base.py 文件源码

def execute(self, query, params=None):
        query, params = self._fix_for_params(query, params)
        self._guess_input_sizes([params])
        try:
            return self.cursor.execute(query, self._param_generator(params))
        except Database.DatabaseError as e:
            # cx_Oracle <= 4.4.0 wrongly raises a DatabaseError for ORA-01400.
            if hasattr(e.args[0], 'code') and e.args[0].code == 1400 and not isinstance(e, Database.IntegrityError):
                six.reraise(utils.IntegrityError, utils.IntegrityError(*tuple(e.args)), sys.exc_info()[2])
            raise